<template>
  <div v-if="isExternal" :style="styleExternalIcon" class="svg-external-icon svg-icon" v-on="$listeners" />
  <svg v-else :class="svgClass" aria-hidden="true" v-on="$listeners">
    <use :xlink:href="iconName" />
  </svg>
</template>
<script>
import { isExternal } from '@/utils/validate'
export default {
    name:"svgicon",
    props:{
        iconClass: {
            type: String,
            required: true
        },
        className: {
            type: String,
            default: ''
        }
    },
    computed:{
        isExternal(){
            return isExternal(this.iconClass)
        },
        iconName() {
             return `#icon-${this.iconClass}`
        },
         svgClass() {
            if (this.className) {
                return 'svg-icon ' + this.className
            } else {
                return 'svg-icon'
            }
        },
        styleExternalIcon(){
             return {
                mask: `url(${this.iconClass}) no-repeat 50% 50%`,
                '-webkit-mask': `url(${this.iconClass}) no-repeat 50% 50%`
            }
        }
    }
}
</script>
<style lang="scss" scoped>
    .svg-icon {
        width: 1.5em;
        height: 1.5em;
        margin-right: 0.3em;
        fill: currentColor;
        overflow: hidden;
    }
    .svg-external-icon {
        background-color: currentColor;
        mask-size: cover!important;
        display: inline-block;
    }
</style>